Electronic device convertible case



FIG. 1 is a front perspective view of an electronic device convertible case;

FIG. 2 is a top plan view of the electronic device convertible case;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right bottom elevational view thereof;

FIG. 6 is a back elevational view thereof; and,

FIG. 7 is a front bottom elevational view thereof.

The broken lines represent stitching are part of the claim. 

CLAIM We claim the ornamental design for an electronic device convertible case, as shown and described. 